JP2007217965A - Prefabricated roof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a prefabricated roof capable of surely introducing water infiltrating into rafters to girder materials. <P>SOLUTION: The curved rafters 11 are installed in a plurality between the two girder materials 10, and a panel 12 is arranged between the rafters 11. The rafters 11 are connected and fixed in an end surface 11b to a side surface 10b of the girder materials 10. A drain plate 30 is installed in the vicinity of a connecting part with the girder materials 10 of an upper surface. The drain plate 30 is fixed in one end part to the rafters 11, and the other end part is positioned above the girder materials 10. The drain plate 30 is fixed only to the rafters 11, and is separately arranged at a predetermined interval from the upper surface of the girder materials 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an assembled roof that constitutes a transfer corridor or the like, and more particularly to an assembled roof that can prevent water leakage between rafters and girders.

Conventionally, an assembly roof is used as a roof of a simple building such as a passageway. The assembled roof is constructed by attaching a plurality of rafters so as to straddle between two girder members and disposing a panel such as an acrylic plate between each rafter. As such an assembly roof, there exists a thing as mentioned in patent document 1, for example.
JP-A-8-158679

  The panel is fixed by being pressed by a rafter at the lower surface of the peripheral edge and pressed by a pressing member provided above the rafter at the upper surface. Here, both sides of the panel are supported or pressed through a watertight material, respectively, but it is difficult to completely prevent the intrusion of water, so a part of the water enters the upper surface of the rafter. The infiltrated water was guided to the girders through the rafters and was discharged to the outside through drainage grooves provided in the girders. Further, a sealing material was provided at a connecting portion between the rafter and the girder to prevent water leakage.

  However, depending on the sealing material alone, sufficient waterproofness may not be ensured, and water that has entered from the connecting portion of the rafter and the girder may flow down the assembly roof. In particular, when the assembly roof is installed at a corner or on an inclined ground, there is a case where sufficient waterproofing cannot be performed with a sealing material. In this case, the girders are connected to each other at an angle in the horizontal direction or the vertical direction, and rafters are provided at the connecting portions, and the rafters and the girders are connected in a non-orthogonal state. When rafters and girders are connected so as to be orthogonal, a certain degree of waterproofing can be secured by the sealing material, but when rafters and girders are connected without being orthogonal to each other, sealing There was a limit to achieving sufficient waterproofing with only the material.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide an assembled roof that can reliably guide water that has entered the rafters to the girders.

In order to solve the above-mentioned problem, an assembled roof according to the present invention is an assembled roof in which a plurality of curved rafters are attached between two girders, and a panel is disposed between the rafters.
The rafter has an end face connected and fixed to the side of the girder, and a drainage plate is attached in the vicinity of the connecting portion with the girder on the upper surface. The drainage plate has one end fixed to the rafter and the other. The end portion is configured to be located above the beam member.

  The assembled roof according to the present invention is characterized in that the drainage plate is provided with walls on both sides.

  Further, the assembled roof according to the present invention is characterized in that the drainage plate is fixed only to the rafter, and is arranged to be separated from the upper surface of the beam member with a predetermined interval. Yes.

  According to the assembled roof according to the present invention, the rafter has an end face connected and fixed to the side face of the girder, and a drainage plate is attached in the vicinity of the connecting portion with the girder on the upper surface, and the drainage board has one end fixed to the rafter. At the same time, the other end is positioned above the girders, so that water from the rafters can be guided to the upper surface of the girders through the drainage plate, so that water is supplied to the joints between the rafters and the girders. It is possible to make it difficult to infiltrate, and on the other hand, the rafters and drain boards can be reliably waterproofed, so that the water resistance from the rafters to the girders is improved and the water that has entered the rafters is reliably guided to the girders. Can do.

  Moreover, according to the assembled roof which concerns on this invention, since the drain plate is provided with the wall part in the both sides, the water which permeated the drain plate can be reliably guide | induced to a girder.

  Furthermore, according to the assembled roof according to the present invention, the drainage plate is fixed only to the rafters, and is arranged so as to be separated from the upper surface of the girders with a predetermined interval, thereby allowing the gap between the rafters and the drainage plate. The waterproofness from the rafters to the girders can be ensured with just waterproofing.

  Embodiments of the present invention will be described in detail with reference to the drawings. In this embodiment, a transfer hall roof using an assembled roof to which the present invention is applied will be described. FIG. 1 shows a front view of a crossing corridor roof using the assembled roof in the first embodiment, and FIG. 2 shows a side view of the crossing corridor roof. As shown in each of these drawings, the transit hall roof according to the present embodiment is obtained by supporting the assembly roof 1 with support columns 2 standing on the left and right sides of the ground.

  The assembled roof 1 has two left and right girders 10 fixed to the column 2 and suspends a plurality of curved rafters 11 between the two girders 10 and is made of an acrylic plate between the rafters 11. The panel 12 is provided and is configured in a planar shape with the center portion curved at the apex. The rain that has fallen on the assembled roof 1 flows toward the girder 10 on both the left and right sides and is guided to a drainage groove 10 a provided in the girder 10. Further, the drainage groove 10a communicates with the rain gutter 20 and a drain pipe 21 provided in the support column 2, and rainwater is drained to the outside through this route.

  FIG. 3 shows a cross-sectional view of the rafter 11 and the panel 12. The rafter 11 is formed in a hollow cross section, and an attachment portion 11a is formed on the upper surface. A pressing member 13 formed in a shape that covers the upper surface of the rafter 11 is fixed to the attachment portion 11a with screws. Then, both sides of the peripheral edge of the panel 12 are sandwiched between the rafter 11 and the pressing member 13, and the panel 12 between the rafters 11 is fixed.

  FIG. 4 shows a cross-sectional view of a connecting portion between the rafter 11 and the beam member 10. As shown in this figure, the end surface 11b of the rafter 11 is connected and fixed to the side surface 10b of the beam member 10 by a fixing bracket 11c. Further, the drainage groove 10 a described above is formed at the end opposite to the side surface 10 b of the girder 10, and the opening 10 c is located below the upper surface of the panel 12 and the upper surface of the rafter 11.

  A drainage plate 30 is provided at the connecting portion of the rafter 11 and the girder 10 so as to straddle it. One end of the drainage plate 30 abuts against the upper surface of the rafter 11 and is fixed with screws. On the other hand, the other end of the drain plate 30 is disposed above the upper surface of the beam member 10 with a predetermined distance. That is, the drainage plate 30 is fixed only to the rafters 11 and is not directly fixed to the girder 10.

  In FIG. 5, the top view of the connection part of the rafter 11 and the girder 10 is shown. As shown in this figure, a peripheral cover member 14 is provided on the upper surface of the beam member 10 to cover the peripheral portion of the panel 12 on the beam member 10 side. However, the peripheral cover member 14 is not provided on the extension of the rafter 11 in order to guide water to the drainage groove 10a.

  Further, the drainage plate 30 is formed as a plate-like member provided from the upper surface of the rafter 11 to the upper surface of the beam member 10, and is formed in a substantially U shape so as to avoid the attachment portion 11 a of the rafter 11. The rafter 11 is fixed with screws on both sides of the mounting portion 11a. Furthermore, the drain plate 30 is also shown in FIG. As shown in this figure, the drainage plate 30 has a wall portion 30a that rises on both sides, and has a cross-sectional groove shape, so that water from the rafter 11 can be surely flowed toward the girder 10. .

  In FIG. 6, the disassembled perspective view of the connection part of the rafter 11 and the girder 10 is shown. In this figure, the rafter 11 and the girder 10 are shown in a state of being connected by a fixing bracket 11c. The drainage plate 30 is attached to the connecting portion between the rafter 11 and the girder 10 from above, and is fixed to the rafter 11 with screws.

  Further, FIG. 7 shows a perspective view of a connecting portion between the rafter 11 and the girder 10 in a state of being waterproofed. When the drainage plate 30 is fixed to the rafter 11 as shown in this figure, a sealing material 31 is provided at the joint between the drainage plate 30 and the rafter 11. Since the drain plate 30 is mounted horizontally with respect to the rafter 11, the sealing material 31 can sufficiently ensure the waterproof property between the drain plate 30 and the rafter 11.

  Next, a second embodiment of the present invention will be described. In the present embodiment, a rafter 11 is further connected to a portion where the girder 10 is connected at a predetermined angle in a horizontal plane. Such a structure is used in the corner portion of the passage corridor roof. In FIG. 8, the top view of the connection part of the rafter 11 and the girder 10 in this embodiment is shown. As shown in this figure, in this embodiment, two girder members 10 are abutted and connected at a predetermined angle.

  For this reason, the rafter 11 connected to the connecting portion of the beam member 10 is not orthogonal to any of the beam members 10 and is fixed while being inclined. In this case, in particular, even if the seam portion of the rafter 11 and the beam member 10 is waterproofed with a sealing material, it is difficult to ensure sufficient waterproofness, and water leakage may occur from the seam portion.

  In the present embodiment, the drainage plate 30 is provided at the connecting portion between the rafter 11 and the beam member 10 as in the first embodiment. The shape of the drain plate 30 is the same as that of the first embodiment, and abuts against the upper surface of the rafter 11 and is fixed with screws. On the other hand, it is located above the beam member 10 and is spaced apart from the upper surface of the beam member 10 so as to have a predetermined distance.

  Since the drain plate 30 is mounted horizontally with respect to the rafter 11 as in the first embodiment, the sealing material 31 can sufficiently secure the waterproof property between the drain plate 30 and the rafter 11. And the water from the rafter 11 is led to the upper surface of the girder 10 through the drainage plate 30, and further led to the drainage groove 10a. That is, water can be prevented from entering the connecting portion between the rafter 11 and the beam member 10 which is difficult to ensure waterproofness, and thus high waterproofness can be ensured.

  Next, a third embodiment of the present invention will be described. In the present embodiment, a rafter 11 is further connected to a portion where the girder 10 is connected in a vertical direction with a predetermined angle. Such a structure is used when installing the crossing corridor roof from the horizontal plane to the inclined plane. In FIG. 9, sectional drawing of the rafter 11 and the panel 12 in this embodiment is shown. As shown in this figure, in this embodiment, two girder members 10 are abutted and connected at a predetermined angle.

  For this reason, the rafter 11 connected to the connection part of the beam member 10 is abutted with any of the beam members 10 so as to have a gap in the upper part. For this reason, it is difficult to perform waterproofing so as to completely fill the gap, which causes water leakage.

  In the present embodiment, the drainage plate 30 is provided at the connecting portion of the rafter 11 and the beam member 10 as in the first and second embodiments. The shape of the drainage plate 30 is the same as in the first and second embodiments, and abuts against the upper surface of the rafter 11 and is fixed with screws. On the other hand, it is located above the beam member 10 and is spaced apart from the upper surface of the beam member 10 so as to have a predetermined distance.

  Since the drainage plate 30 is mounted horizontally with respect to the rafter 11 as in the first and second embodiments, the waterproofness between the drainage plate 30 and the rafter 11 can be sufficiently secured by the sealing material 31. In addition, since the drain plate 30 is provided so as to straddle the joint between the rafter 11 and the girder 10, it is possible to prevent water from entering the connecting portion between the rafter 11 and the girder 10, which is difficult to ensure waterproofness. And high waterproofness can be secured.

  Although the embodiments of the present invention have been described so far, the application of the present invention is not limited to these embodiments, and can be variously applied within the scope of the technical idea. For example, in the first embodiment, the assembly roof 1 according to the present invention is supported from both sides by the right and left columns 2, but the columns 2 are provided only on either the left and right sides and supported from one side. Also good. Further, the present invention can be applied to any length, width and connecting angle of the assembled roof 1.

It is a front view of the passage corridor roof using the assembly roof in 1st Embodiment. It is a side view of the passage corridor roof using the assembly roof in 1st Embodiment. It is sectional drawing of a rafter and a panel. It is sectional drawing of the connection part of a rafter and a girder. It is a top view of the connection part of a rafter and a girder. It is a disassembled perspective view of the connection part of a rafter and a girder. It is a perspective view of the connection part of the rafter and the girder of the state which performed the waterproofing process. It is a top view of the connection part of a rafter and a girder in a 2nd embodiment. It is sectional drawing of a rafter and a panel in 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Assembling roof 2 Support | pillar 10 Girder material 10a Drainage groove 10b Side surface 10c Opening 11 Rafter 11a Mounting part 11b End surface 11c Fixed bracket 12 Panel 13 Pressing material 14 Perimeter part cover material 30 Drain plate 30a Wall part 31 Sealing material

Claims (3)

In an assembly roof in which a plurality of curved rafters are attached between two girders and a panel is arranged between the rafters,
The rafter has an end face connected and fixed to the side of the girder, and a drainage plate is attached in the vicinity of the connecting portion with the girder on the upper surface. The drainage plate has one end fixed to the rafter and the other. An assembled roof characterized in that an end is located above the girder.   The assembled roof according to claim 1, wherein the drainage plate is provided with walls on both sides.   The assembled roof according to claim 1 or 2, wherein the drainage plate is fixed only to the rafter and is arranged to be separated from the upper surface of the beam member with a predetermined interval.

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